@article{ref1,
title="Suicidal behaviour and interpersonal network",
journal="Crisis",
year="1987",
author="Hart, E. E. and Williams, Christopher L.",
volume="8",
number="2",
pages="112-124",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0227-5910",
doi="",
url="http://dx.doi.org/"
}